# Duee vs Session Flow

The clearest difference is update cadence: Session Flow at every 3 days against Duee's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Duee sells 3 one-off in-app purchases and Session Flow sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Duee ships an update fortnightly, Session Flow every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Duee | Session Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/duee-payment-calendar/id6759526790/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 60 MB | 52 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Yigit ERKAL](https://appshunter.io/developer/1870976115) | [Kaio Rafael de Oliveira Diniz](https://appshunter.io/developer/1892054084) |

## What reviewers say

### Duee

[App page](https://appshunter.io/ios/app/duee-payment-calendar/id6759526790)

Organize all your recurring bills and subscriptions in a visual calendar. Get smart reminders before payments are due and track your expenses easily. Avoid missed payments with this simple, intuitive tool.

**Highlights:** Payment calendar with month view, Recurring payment tracking, Smart due date reminders, Mark payments as paid/unpaid, Notes for payment details, Monthly and yearly totals, Multi-currency support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | one-time |
| Yearly | $9.99 | one-time |
| Remove Notification Limit | $19.99 | one-time |


### Session Flow

[App page](https://appshunter.io/ios/app/session-flow-client-scheduler/id6761916040)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential | $1.99 | per month |
| Session Flow Premium Monthly | $7.99 | per month |
| Session Flow Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is Duee free?

Duee is free to download, with in-app purchases available.

### Is Session Flow free?

Session Flow is free to download, with in-app purchases available.

### Do Duee or Session Flow have ads?

Neither Duee nor Session Flow shows ads.

### Which is updated more often, Duee or Session Flow?

Duee ships an update fortnightly, and Session Flow every 3 days. Most recently, Duee was updated on October 24, 2026 and Session Flow on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*